Objective Questions

Questions (769)

#	Question	Topic	Actions
601	What is an unusual feature distinguishing Hornworts from other land plants, as …	BOT 102 Review	View
602	What is vernalisation in the context of biennial plants?	BOT 102 Review	View
603	What is the primary significance of double fertilisation in angiosperms?	BOT 102 Review	View
604	Classification based on evolutionary descent, supported today by molecular/DNA …	Practice Questions BOT 102 - 1	View
605	Non-vascular plants are also called _______, and they lack true xylem, phloem, …	Practice Questions BOT 102 - 1	View
606	Seedless vascular plants that reproduce by spores are called _______; examples …	Practice Questions BOT 102 - 1	View
607	Naked-seeded plants not enclosed in an ovary/fruit are called _______; examples…	Practice Questions BOT 102 - 1	View
608	Flowering plants, whose seeds are enclosed in an ovary that develops into a fru…	Practice Questions BOT 102 - 1	View
609	A named group of organisms at any taxonomic rank (e.g., a family or genus) is c…	Practice Questions BOT 102 - 1	View
610	Angiosperms are divided into two classes based primarily on the number of _____…	Practice Questions BOT 102 - 1	View
611	Monocotyledons possess _______ cotyledon, while Dicotyledonae possess _______ c…	Practice Questions BOT 102 - 1	View
612	Monocots typically have a _______ root system, made up of numerous roots of sim…	Practice Questions BOT 102 - 1	View
613	Monocot leaves show _______ venation, while dicot leaves show _______ venation.	Practice Questions BOT 102 - 1	View
614	In monocots, vascular bundles are _______ throughout the ground tissue; in dico…	Practice Questions BOT 102 - 1	View
615	Monocot vascular bundles are described as 'closed' because they lack a _______,…	Practice Questions BOT 102 - 1	View
616	Dicot vascular bundles are described as 'open' because they contain a strip of …	Practice Questions BOT 102 - 1	View
617	In gymnosperms (e.g., Pinus), the tree itself is the _______ generation, bearin…	Practice Questions BOT 102 - 2	View
618	In gymnosperms, pollen is transferred by _______ (pollination agent), and a pol…	Practice Questions BOT 102 - 2	View
619	In angiosperms, meiosis of microspore mother cells within the anther is called …	Practice Questions BOT 102 - 2	View
620	The mature female gametophyte of an angiosperm is called the _______ sac, typic…	Practice Questions BOT 102 - 2	View
621	The unique angiosperm process where one sperm fertilises the egg and a second s…	Practice Questions BOT 102 - 2	View
622	Fusion of a sperm with the egg cell forms the diploid _______ which develops in…	Practice Questions BOT 102 - 2	View
623	Fusion of the second sperm with the two polar nuclei forms the triploid _______…	Practice Questions BOT 102 - 2	View
624	After fertilisation, the ovule develops into the _______ and the ovary wall dev…	Practice Questions BOT 102 - 2	View
625	Across bryophytes → pteridophytes → gymnosperms → angiosperms, there is a trend…	Practice Questions BOT 102 - 2	View
626	Growth is defined as an irreversible, permanent increase in mass, _______ and/o…	Practice Questions BOT 102 - 2	View
627	In plants, growth is localised to specific regions called _______.	Practice Questions BOT 102 - 2	View
628	Meristems at the tips of roots and shoots are called _______ meristems, respons…	Practice Questions BOT 102 - 2	View
629	Meristems located parallel to the sides of roots/stems are called _______ meris…	Practice Questions BOT 102 - 2	View
630	Meristems located between mature tissues, e.g., at the base of grass internodes…	Practice Questions BOT 102 - 2	View
631	Primary growth results from apical meristems and produces tissues from the prot…	Practice Questions BOT 102 - 2	View
632	Secondary growth results from lateral meristems: the _______ producing secondar…	Practice Questions BOT 102 - 2	View
633	Secondary growth is characteristic of gymnosperms and most dicots, and is gener…	Practice Questions BOT 102 - 2	View
634	The growth curve of an organ typically follows a _______ (S-shaped) pattern wit…	Practice Questions BOT 102 - 2	View
635	Plants with soft, green, non-woody stems that die back at the end of the growin…	Practice Questions BOT 102 - 2	View
636	Woody perennial plants smaller than trees, with multiple stems from near ground…	Practice Questions BOT 102 - 2	View
637	Large woody perennials with a single main trunk and branching crown are called …	Practice Questions BOT 102 - 2	View
638	Plants with stems too weak to be self-supporting that climb using coiling stems…	Practice Questions BOT 102 - 2	View
639	Climbers that use modified leaves/leaflets/stems forming coiling tendrils are c…	Practice Questions BOT 102 - 2	View
640	Climbers that use adventitious roots to attach to a support are called _______ …	Practice Questions BOT 102 - 2	View
641	Climbers that use hooks or thorns to scramble over supports are called _______;…	Practice Questions BOT 102 - 2	View
642	Plants with weak stems that trail along the ground, sometimes rooting at the no…	Practice Questions BOT 102 - 2	View
643	List three environmental factors affecting plant growth and form: _______, ____…	Practice Questions BOT 102 - 2	View
644	Name four plant hormones that regulate growth: _______, _______, _______, and e…	Practice Questions BOT 102 - 3	View
645	_______ (photoperiod) affects stem elongation, branching, and flowering in plan…	Practice Questions BOT 102 - 3	View
646	Plant cells differ from animal cells most notably in the presence of a rigid __…	Practice Questions BOT 102 - 3	View
647	The outermost layer of the cell wall, shared between adjacent cells and compose…	Practice Questions BOT 102 - 3	View
648	The thin, flexible layer deposited by young, growing cells, composed of cellulo…	Practice Questions BOT 102 - 3	View
649	The thick, rigid layer deposited after a cell stops growing, often impregnated …	Practice Questions BOT 102 - 3	View
650	List three functions of the cell wall: provides mechanical _______, determines …	Practice Questions BOT 102 - 3	View
651	The cell wall permits movement of water and solutes between cells via _______ a…	Practice Questions BOT 102 - 3	View
652	The plasma membrane is described using the _______ model, composed of a _______…	Practice Questions BOT 102 - 3	View
653	The plasma membrane regulates movement of substances via diffusion, osmosis, fa…	Practice Questions BOT 102 - 3	View
654	The nucleus is often called the _______ of the cell, and is bound by a double m…	Practice Questions BOT 102 - 3	View
655	The semi-fluid matrix within the nucleus is called the _______.	Practice Questions BOT 102 - 3	View
656	All the living contents of a cell between the plasma membrane and nucleus is ca…	Practice Questions BOT 102 - 3	View
657	Double-membrane-bound organelles unique to plant cells, involved in photosynthe…	Practice Questions BOT 102 - 3	View
658	Chloroplasts contain the pigment _______, housed in internal membrane stacks ca…	Practice Questions BOT 102 - 3	View
659	Chloroplasts possess their own circular DNA and ribosomes, which is evidence fo…	Practice Questions BOT 102 - 3	View
660	Plastids containing carotenoid pigments responsible for yellow, orange, and red…	Practice Questions BOT 102 - 3	View
661	Colourless plastids specialised for storage include _______ (starch, e.g., pota…	Practice Questions BOT 102 - 3	View
662	The large central vacuole in mature plant cells can occupy up to _______% of ce…	Practice Questions BOT 102 - 3	View
663	The vacuole stores water, ions, sugars, and pigments called _______, and helps …	Practice Questions BOT 102 - 3	View
664	The vacuole contains hydrolytic enzymes and may function like a _______, breaki…	Practice Questions BOT 102 - 3	View
665	Mitochondria are the site of _______ cellular respiration, producing _______ (t…	Practice Questions BOT 102 - 3	View
666	The inner mitochondrial membrane is folded into _______, increasing surface are…	Practice Questions BOT 102 - 3	View
667	Like chloroplasts, mitochondria possess their own _______ and ribosomes.	Practice Questions BOT 102 - 3	View
668	The endoplasmic reticulum is a network of interconnected tubules and flattened …	Practice Questions BOT 102 - 3	View
669	Rough ER is studded with _______ and is the site of synthesis of proteins desti…	Practice Questions BOT 102 - 3	View
670	Smooth ER lacks ribosomes and is the site of _______ and steroid synthesis, and…	Practice Questions BOT 102 - 3	View
671	The Golgi apparatus consists of a stack of flattened, membrane-bound sacs calle…	Practice Questions BOT 102 - 3	View
672	The Golgi apparatus modifies proteins/lipids (e.g., by _______), sorts them, an…	Practice Questions BOT 102 - 3	View
673	In plant cells, the Golgi apparatus is especially important in synthesising and…	Practice Questions BOT 102 - 3	View
674	Ribosomes are composed of ribosomal RNA and _______ and are the site of _______…	Practice Questions BOT 102 - 3	View
675	Ribosomes may occur free in the _______ or bound to the _______.	Practice Questions BOT 102 - 3	View
676	Small, single-membrane-bound organelles containing oxidative enzymes, involved …	Practice Questions BOT 102 - 3	View
677	A specialised type of peroxisome found in fat-storing seeds, containing enzymes…	Practice Questions BOT 102 - 3	View
678	The cytoskeleton is a dynamic network of protein filaments providing structural…	Practice Questions BOT 102 - 3	View
679	Hollow tubes of the protein _______ involved in spindle fibre formation and gui…	Practice Questions BOT 102 - 3	View
680	Solid filaments of the protein _______ involved in cytoplasmic streaming, are c…	Practice Questions BOT 102 - 3	View
681	Minute channels traversing the cell wall, connecting the cytoplasm of adjacent …	Practice Questions BOT 102 - 3	View
682	Plasmodesmata functionally link the cytoplasm of the whole plant into a continu…	Practice Questions BOT 102 - 3	View
683	Comparing plant and animal cells: plant cells have a _______ (absent in animal …	Practice Questions BOT 102 - 3	View
684	Plant cells store carbohydrate as _______ while animal cells store it as ______…	Practice Questions BOT 102 - 3	View
685	Plant cell division is completed by cytokinesis, distinguished by the formation…	Practice Questions BOT 102 - 3	View
686	Morphology is the study of the _______ form and structure of an organism.	Practice Questions BOT 102 - 3	View
687	In angiosperms, the plant body is organised into a _______ system and a _______…	Practice Questions BOT 102 - 3	View
688	Roots develop from the _______ of the embryo and generally lack nodes, internod…	Practice Questions BOT 102 - 3	View
689	List three functions of roots: anchorage, absorption of water and minerals (mai…	Practice Questions BOT 102 - 3	View
690	Roots also help in _______ of water/minerals upward and photosynthates downward…	Practice Questions BOT 102 - 3	View
691	A single dominant primary root with smaller lateral roots (typical of dicots) i…	Practice Questions BOT 102 - 3	View
692	Numerous adventitious roots of similar size (typical of monocots) form a ______…	Practice Questions BOT 102 - 3	View
693	Roots swollen for food storage (e.g., cassava, carrot) are called _______ roots.	Practice Questions BOT 102 - 3	View
694	Adventitious roots providing extra support (e.g., maize, mangrove) are called _…	Practice Questions BOT 102 - 3	View
695	Roots that grow upward for gas exchange in waterlogged soils (e.g., mangrove) a…	Practice Questions BOT 102 - 3	View
696	Roots that grow above ground and absorb atmospheric moisture (e.g., orchids) ar…	Practice Questions BOT 102 - 3	View
697	The stem bears _______ (points of leaf/bud attachment) and _______ (regions bet…	Practice Questions BOT 102 - 3	View
698	List two functions of the stem: support/elevation of leaves and flowers, and co…	Practice Questions BOT 102 - 3	View
699	An underground horizontal stem (e.g., ginger) is called a _______.	Practice Questions BOT 102 - 3	View
700	A swollen underground stem for storage bearing 'eyes' (e.g., potato) is called …	Practice Questions BOT 102 - 3	View

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